2-(Cyclopent-2-en-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane CAS 287944-11-0

Purity 97%+In StockPharmaceutical Standards
CAS No.287944-11-0
Molecular FormulaC11H19BO2
Molecular Weight194.08 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(Cyclopent-2-en-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane CAS 287944-11-0 chemical structure

Description

2-(Cyclopent-2-en-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (C11H19BO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

CATO supplies 2-(Cyclopent-2-en-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 287944-11-0), a certified reference material (molecular formula C11H19BO2, MW 194.08 g/mol) for analytical method development and quality control.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC11H19BO2
Molecular Weight194.08 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)2.5
CAS Registry Year (est.)2025

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